Inside job: ligand-receptor pharmacology beneath the plasma membrane.

Inside job: ligand-receptor pharmacology beneath the plasma membrane.
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DOI:
10.1038/aps.2013.51
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发表时间:
2013-07
影响因子:
8.2
通讯作者:
Li, Min
Li, Min
中科院分区:
医学1区
文献类型:
--
作者:
Babcock, Joseph J.;Li, Min

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大多数作用于细胞表面受体的药物是膜渗透性的,因此能够在不同的亚细胞区室中结合其靶蛋白。然而,这些药物对细胞表面受体的影响历来仅在质膜上进行研究。越来越多的证据表明,小分子也可以通过细胞膜运输或细胞器定位的信号转导来调节其靶向受体。这些额外的相互作用模式已被报道用于GPCR、离子通道和转运蛋白的功能多样的配体。这样的细胞内药物-靶标结合影响细胞表面表达。同时的细胞内和细胞表面信号传导也可能增加小分子调节的复杂性和治疗机会。在这里,我们讨论的配体-受体相互作用的例子,都存在于内部和细胞外的网站,以及这种现象所提出的潜在的治疗机会。
Most drugs acting on the cell surface receptors are membrane permeable and thus able to engage their target proteins in different subcellular compartments. However, these drugs' effects on cell surface receptors have historically been studied on the plasma membrane alone. Increasing evidence suggests that small molecules may also modulate their targeted receptors through membrane trafficking or organelle-localized signaling inside the cell. These additional modes of interaction have been reported for functionally diverse ligands of GPCRs, ion channels, and transporters. Such intracellular drug-target engagements affect cell surface expression. Concurrent intracellular and cell surface signaling may also increase the complexity and therapeutic opportunities of small molecule modulation. Here we discuss examples of ligand-receptor interactions that are present in both intra- and extracellular sites, and the potential therapeutic opportunities presented by this phenomenon.
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